BURST GUARD™ Guarantee -100˚F

Get back on the open road faster! Keep your RV safe from burst pipes and waterlines with WINTERPROOF™ RV Water System Antifreeze.

Don’t let your plans for a road trip wash away because of burst pipes. Use WINTERPROOF™ RV Water System Antifreeze formulated specifically for RVs to keep your waterlines protected throughout the harsh winter.


  1. Complete water system protection.
  2. Prevention of burst waterlines.
  3. Safe for use on plastic and metal pipes.
  4. Safe for portable water systems.
  5. Keeps waterlines, pipes, and seals lubricated.
  6. Specialized, ready to use formula.

How to Winterize Your RV

Keep your RV piping and waterlines safe through winters with WINTERPROOF™ RV Water System Antifreeze and our BURST GUARD™ Guarantee -100˚F. Follow these simple steps to avoid complications and costly repairs:

1 Lower trailer to drain fresh water tank.

Lower the trailer slightly with the jack to allow better water flow out of the tank.

2 Remove drain plug or tap to empty fresh water tank.

Remove the drain plug on the fresh water tank. This plug is fitted as original equipment. Your RV may already come with a drain valve or tap.

3 Open taps to drain water… kitchen, bath sink, tub & toilet.

Open your kitchen sink taps, bathroom sink, and shower taps to empty all remaining water down the drain. Flush the toilet. If you have an outside shower, remember to drain that too.

4 Ensure water heater is turned off.

Make sure your water heater is off. We don’t want to empty the water heater with the propane on and ignite it.

5 Drain water heater. Release pressure & remove anode knob

Drain the water heater. Locate the water heater on the outside of your trailer and open the cover. Pull up the handle on the pressure relief valve to release any pressure.

6 Apply Teflon tape to threads. Reinsert anode rod.

Re-insert the anode rod after the water heater is empty. It’s a good idea to apply Teflon tape or appropriate fitting compound to the fitting threads to avoid leakage. Re-insert the anode rod and tighten it.

7 Connect sewer line. Drain black & grey water tanks.

Ensure that the black and grey water tanks are empty. Always empty the black water tank first then the grey water tank.

8 Locate water heater & remove access panels.

You want to fill the water lines in the trailer with WINTERPROOF™ RV Water System Antifreeze. However, you do not want any antifreeze to enter the water heater.

9 Close cold & hot water valves.

Close both the bottom and top valves to prevent WINTERPROOF™ RV Water System Antifreeze from entering the water heater.

10 Locate fresh water tank & pump suction tube.

Locate the fresh water tank and tube that will allow the pump to suck up antifreeze to winterize the system. If you do not have a suction tube you can purchase a winterizing kit at an RV service center.

11 Close valve from fresh water tank. Open pump suction line valve.

Close the valve from the fresh water tank so WINTERPROOF™ RV Water System Antifreeze does not enter and then open the valve to the suction tube.

12 Turn on pump for 15 seconds.

Turn on your pump for fifteen seconds to let the pump run dry. Don’t overrun your pump when it’s empty.

13 Turn off all taps in kitchen & bathroom.

Turn off all your taps prior to filling the lines with WINTERPROOF™ RV Water System Antifreeze.

14 Place suction tube in antifreeze & turn on pump.

Place the suction tube into the jug of WINTERPROOF™ RV Water System Antifreeze and turn on the pump. Exchange antifreeze jugs as they become empty.

15 Turn on taps until antifreeze appears.

Turn on both the cold and hot water taps throughout until green WINTERPROOF™ RV Water System Antifreeze appears. You’ll want about 250 mL (1 cup) of antifreeze to run into the toilet. Open the outside shower to fill this waterline with plumbing antifreeze.

16 Pour antifreeze into kitchen & shower/bathtub drains.

Pour about 500 mL (2 cups) of WINTERPROOF™ RV Water System Antifreeze into the kitchen and bathroom sinks and the shower or tub drains. Clean up any spilled antifreeze. It is normal for the product to become ‘slushy’ and freeze in sub-zero temperatures, but it will not damage the system.

Product Specifications

Item # Unit/Case Pack UPC SCC14
35-364WPUS/13147 4 x 1 USG 056438909545 40056438909543
35-365WPUS/13148 2 x 2.5 USG 056438909552 40056438909552
35-369WPUS/13149 4 x 55 USG - -
35-369WPUS-275/13150 1 x 275 USG - -

Tips for Finding MSDS

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  2. Use the link below to access our MSDS database portal
  3. Select the red SEARCH button on the left-hand side of page
  4. Type item # in the Product Code box and press search (XX-XXXX)
  5. Hover over the yellow MSDS button and select either English or French